Home / 19,240.54-28,863.84-8,147.30

Finding the Fourth Proportional to 19,240.54, 28,863.84 and 8,147.30

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Solution

The fourth proportional to 19,240.54, 28,863.84 and 8,147.30 is: 12,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.54 : 28,863.84 = 8,147.30 : x
  2. Step 2: Convert to fraction form
    19,240.54/28,863.84 = 8,147.30/x
  3. Step 3: Cross multiply
    19,240.54x = 28,863.84 × 8,147.30
  4. Step 4: Simplify right side
    19,240.54x = 235,162,249.87
  5. Step 5: Solve for x
    x = 235,162,249.87/19,240.54
  6. Step 6: Final answer
    x = 12,222.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.